TL;DR: She's a champion with a skill gate that players need to adjust to. She's not terrible right now if you learn her, and when mastered she's still incredibly strong.
I think her W is fine. I'm a d5 camille main (and while yes, I have 1.5 mil on elise, I also have 190k on camille which is only rivaled by my 192k kha.)
I find camille to be in a good spot as she has all the tools she needs right now, and her damage seems fair for everything else she lacks.
Camille's pimary issue is NOT how weak she is, it's the skillgate between an average camille, and a good camille (and the skill ceiling of a OTP past that). If anybody says camille is "a simple champ to play" you're wrong because she requires knowledge about all her matchups. Something not everybody does even on their main is max out certain spells situationally, as most champions are very binary with maxing their spells or starting certain items, camille is not one of those.
Camille trades differently compared to a lot of champions, due to her passive and damage, but her damage method and window of counter play make it easy to deal with her. Camille can short trade, which is her basically walking up for her passive and getting an auto or two or even her 2nd Q, and then there's long trades which are those long combos of her all-ining you with her ultimate and E. Maxing Q is good for short trades as most of your damage comes from the 2nd q. (What you SHOULD do, is Q a minion, E to the target, AA+ 2nQ and W while walking away, this is a free short trade while maximizing your damage and minimizing your damage intake) A short trade, is of course only going to work out vs. champions which you really can't trade with unless its super free, such setting it up like mentioned, particularly renekton, darius, garen, swain, rumble, etc. However maxing E is best vs. other matchups, such as riven, tryn, yas, jayce, gnar etc, because the attack speed, stun duration, and cooldown (for escapes/repetitive all ins) are way more important than extra true damage when they don't build armor during this lane phase. In particular, the attack speed bonus+stun means you get way more hits off and the CD means you can constantly keep doing that around their cooldowns, or escape from their all-ins with or without a jungler.
Additionally starting items play a big role as they change your playstyle (and if you learned camille with one playstyle, readjusting is hard). Doran's blade is a cocky pick as it basically says you're going to try and win the lane, which with all of camille's matchups.... that's not going to happen as easily as you'd think. Doran's shield means you're staying passive and abusing your item passive to negate damage stacking on your passive, and farming freely undertower while going even until your jungler does something. This is good vs. darius and fiora as their poke and short trades don't hurt as bad undertower while you freeze. Corruption potion is good vs. champions you want to trade with as you can heal and refund some mana while staying in lane about as long as doran's shield while pushing.
So what exactly is camille's issue? Again, there is none its just the skillgate is really massive as camille forces players to use tactics they normally wouldn't on other top lanes (You're fiora, max Q be annoying. You're Rumble Max Q be annoying. You're camille... max x in situation y, max y in situation x, do not feed, feed a lot) and she requires you to know your matchups really well as her reading what the opponent can do to combo properly takes a lot of game knowledge.
**The champ isn't bad but there is no room to add power as there isn't power to be needed when a lot of people are just bad at her. **
I personally don't want to see camille get buffed anymore as I feel with all the tools I'd mastered, as well as other camille mains, I believe anything we're given is just overkill to try and make unexperienced camilles feel more comfortable. (and tbh, I don't want to see skill gate reworks as unlike azir camille is pretty fair right now in terms of being good and fair to play against, azir is either unfair to play or unfair to play against.) Its not like she's kindred weak in terms of playrate/winrate ratio either, its fairly ok especially in a meta of riven, and fiora which camille shouldn't be existing as well as she is. (fiora being nerfed indirectly buffs camille)
Wait, but how are we susposed to get good at camille?
I personally picked up on several tricks myself, however I feel anybody who learns her mechanics (including E-flash, which makes a pretty big difference), and spends the time watching her match ups (I hated riven and renekton but after watching artifical sky's camille videos I don't mind them as much anymore and know what to do now) will enjoy playing the champion. Also wave management is pretty huge on her, I personally always sucked at wave management but I always did fine regardless on champions like rumble or yorick, however with camille my control of the lane improved drastically when I learned wave management better.
But that's my take on her, I was like those clickbait youtube vids with her popping off brainslessly during release because she was that broken, I couldn't play the champion to save my life after the nerfs because I really didn't know what the fuck I was doing, I just was getting away with it before, but after actually learning her, its safe to say my experience as been equivalent to release camille.
If you want to buff her W, give her healing off jungle camps back, and make it do extra damage to minions, but other than that, her interactions with her opponent shouldn't be changed at all.
**
or 
are my standard items XD
